bird: KIF: Invalid broadcast address 255.255.255.255 for em1

[Ondrej Zajicek]

On Tue, Nov 10, 2015 at 03:40:58PM +0100, Job Snijders wrote:
> Hi Fellow BIRD users,
> 
> It appears that BIRD does not fully appreciate RFC3021 style addresses
> on Ubuntu 15.04, when I start BIRD:
> 
> 	syslog:Nov 10 15:25:15 eunetworks-2 bird: KIF: Invalid broadcast address 255.255.255.255 for em1
> 	syslog:Nov 10 15:25:15 eunetworks-2 bird: KIF: Invalid broadcast address 255.255.255.255 for p2p2.1003

BIRD works with RFC 3021 style addresses without problems, it is just
confused by the fact that directed broadcast address for the iface is
configured to 255.255.255.255, which is address reserved for link-local
broadcast.

BIRD should work without problems on these interfaces (unless you use
broadcast like in RIPv1), it is just warning.


> Should I configure the Linux side of things differently or is this
> something that needs resolving in BIRD itself?

IMHO reasonable setting would be to not set directed broadcast address on
such interfaces. Link-local broadcast address works for any interfaces
and need not be configured.


-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
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